Dump-car.



No. 739,892. PATENTED SEPT. 29, 1903.. j G. B. MALTBY.

DUMP GAR.

APPLICATION FILED MAR. 16. 1903. NO MODEL. 2 8H M's-SHEET 1.

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- No. 739,892. PATENTED SEPT. 29, 1903.

G. B. MALTBY.

- DUMP GAR.

APPLICATION FILED MAR. 16, 1903.

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UNITED STATES Patented September 29, 1903.

PATENT OFFICE.

GEORGE B. MALTBY, OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL COAL DUMP CAR COMPANY, OF SOUTH DAKOTA, OF RAPID CITY, SOUTH DA- KOTA, AND CHICAGO, ILLINOIS, A CORPORATION OF SOUTH DAKOTA.

DUMP-CAR.

SPECIFICATION forming part of Letters Patent No. 739,892, dated September 29, 1903.

Application filed March 16, 1903.

To all whom it may concern:

Be it known that I, GEORGE B. MALTBY, a citizen of the United States, residing at Chi-, cago, in the county of Cook 'and'State of Illinois, have invented certain new and useful Improvements in Dump-Cars, of which the following isa specification.

This invention relates to that class of cars which are provided with dumping bottom por- IO tions, and particularly to the means by which the car may be'converted from a dumpingcar provided with an A-shaped apex in the bottom portion to a flat-bottom gondola car, all of which will more fully hereinafter appear. V

The principal object of the invention is to provide a simple, economical, and efficient, dump-car.

' Further objects of the invention are to provide a dump-car with a; collapsible and extensible A-shaped central portion, as will more fully hereinafter appear.

The invention consists principally in a dumping-car provided with a supportingframework, an A-shaped portion extending longitudinally of the car above the bottom portion andat the central portion thereof, and means for collapsing and extending such ,A-shaped portion.

The invention consists, further and finally, in the features, combinations, and details of construction hereinafter described, and claimed.

In the accompanying drawings, Figure 1 is 3 5 a plan view of one end of a car as it appears when constructed in accordance with these improvements, Fig. -2, a longitudinal sectional elevation of the same, taken on line 2 of Fig. 1 looking in the direction of the ar- 0 row; Fig. 3, a vertical sectional elevation,

taken on line 3 of Fig. 2 looking in the direction of the arrow and showing the parts with the central apex portion extended into its A-shaped condition; and Fig. 4, a partial 5 view of the same, showing the apex portion collapsed into a flat plane.

In the art to which this invention relates it is well known that it is very desirable to have dumping-cars whichwill automatically dis:

5o charge a large portion of their bulky freightsuch as coal, ballast, sand, and the like- Serial No. 148,080- (No modeld through the bottom portion. In order to ased, notably a centrally-located A-shaped apex 5 5 portion arranged longitudinally of the car and above the drop-bottom, so that when the doors that form a portion of the bottom of the car are dropped their discharging position the bottom of the car presents a complete A-shaped discharging portion. It is very desirable to oftentimes use this style of car as a gondola car for the transportation of freight that requires a uniform flat bottom, which is not possible with cars having an A-shaped central apex.

The principal object of this invention,therefore, is to provide a car of such construction and arrangement as will provide for the use of a centrally-located A-shaped apex portion. to assist in discharging bulky freight when desired, and which at other times may be collapsed, so that the car may be used as an ordinary flat-bottom gondola car, all of which will be understood and appreciated by those skilled in the art. i

' In constructing a car in accordance with these improvements I provide a supportingframework comprising longitudinal center sills a, deck-beams b, side boards 0, held in place by means of the side posts d, and end boards 6, all of which may be of any usual form'of construction and arrangement. A drop-bottom portion is provided for this type ofcar, preferably formed of a plurality of 8 swingingdoor portions f, hinged at their inner edges, as at g, so that when the doors are open they incline downwardly and outwardly at an angle, so as to discharge the material to either or both sides of the supportingetrack. 9o

7 To assist in discharginga load'of freightsuch as broken-stone ballast, coal, and the likethrough' the bottom portion whenever desirable, a centrally-located A-shaped apex portion is provided, extendinglongitudinally 5 of the car and above the drop-bottom. This apex portion is formed of two sections h and t, foldably secured together, so that they may maintain at desired times an A -shaped condition or be collapsed into a flat plane, as [00 shown in Figs. 3 and 4 of the drawings, respectively. In order to expand and collapse the A-shaped apex portions into the desired positions, operating-leversj are provided,pivotally secured to the apex sections. These operating'levers are also pivotally secured by means of pivots 7a in brackets Zto the supporting-framework of the car in an X-shaped manner, as shown more particularly in Fig. 3. An operating rock-shaft m is provided, and secured thereto is a plurality of chains or, which are passed around sheave-pulleys p and secured to the lower extending arms of the X- shaped levers. The arrangement is such that when the operating-shaft is wound inone direction the operating-levers are moved, so as to extend the apex sections into their A- shaped position, as shown in Fig. 3, and when the operating-shaft is rotated in an opposite manner gravity or the weight of the parts is permitted to move the apex sections into a.

flat plane, as shown in Fig. 4. It is also desirable to provide some means for positioning the apex sections as well as to form a joint at each end that will prevent comminuted material from falling down through the same. To provide such means, the ends of the apex section are provided with upwardly-extending flanges formed of angle-bars q, and the ends of the car with downwardly-extending flanges formed of Z-bars r. When the apex sections are extended into their A-shaped condition, the flanges on the end enter the space formed between the Z-bars and the end of the car, which assists in positioning the same and seals the joints between such portions and the apex portions, all of which will be understood and appreciated by those skilled in the art.

I claim- 1. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections arranged longitudinally of the car over such center sills and extending outward and downward transversely of the car at an incline in opposite directions in one position, and horizontally in a second position, substantially as described.

2. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sectionsarranged longitudinally of the car over such center sills and extending outward and downward transversely of the car at an incline in opposite directions in one position and horizontally in a second position, and means for moving such sections into such inclined and horizontal positions as desired, substantially as described.

3. In a car of the class described, the combination of a supporting-framework comprising longitudinal sills, a movable central floor portion comprising a plurality of relatively movable sections arranged longitudinally of the car over such center sills and extending outward and downward transversely of the car at an incline in opposite directions in one position and horizontally in a second position, lever mechanism in engagement with such relatively movable sections, and means for operating such lever mechanism, substantially as described.

4. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections pivotally connected centrally of the car and extending outward transversely thereof at an incline in opposite directions in one position and horizontally in a second position, and means for moving such floor-sections into their inclined and horizontal positions, respectively, as desired, substantially as described.

5. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections pivotally connected centrally of the car and extending outward transversely thereof at an incline in opposite directions in one position and horizontally in a second position, and a plurality of dumping-doors pivotally mounted on opposite sides of such movable floor portion, substantially as described.

6. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections pivotallyconuected centrally and longitudinally of the car and extending outward transversely thereof at an incline in opposite directions in one position and horizontally in a second position, a. plurality of dumping-doors pivotally mounted on opposite sides of such movable central floor portion, and means for moving such central floor-sections into theirinclined and horizontal positions, respectively, as desired substantially as described.

7. In a car of the class-described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections pivotallyconnected centrally of the car and extending outward transversely thereof at an incline in opposite directions in one position and horizontally in a second position, means for moving such floor-sections into their inclined and horizontal positions, respectively, as desired, and a plurality of dumping-doors pivotally mounted on opposite sides of the center sills and having their pivotal points beneath such movable central floor-sections, substantially as described.

8. In a car of the class described, the combination of a supporting-framework comprising longitudinal center sills, a movable central floor portion comprising a plurality of relatively movable sections arranged longitudinally of the car over such center sills and extending outward and downward transversely of the carat an incline in opposite directions in one position and horizontally in a second position, means for moving such sections to their inclined and horizontal posi-' tions, respectively, when desired, a plurality of dumping-doors pivotally mounted on opposite sides of such center sills beneath such movable central floor-sections and extending outward transversely of the car in opposite directions from their'pivotal points, horizontally in one position and downward and outward at an incline from such pivotal points in a second position, substantially as described.

9. In a car of the class described, the combination of a supporting-framework comprisinglongitudinal center sills and provided with side and end boards, a drop-bottom in such car formed of a plurality of doors hinged to the supporting-frame at their inner edges, a central A-shaped apex portion extending longitudinally of the car over the longitudinal center sills and above the drop-bottom, and lever mechanism for moving such A-shaped portion into a fiat horizontal position over the drop-bottom doors, substantially as described.

10. In a car of the class described, the combination of a supporting-framework provided with side and end boards, a drop-bottom formed of a plurality of swinging doors hinged at their inner ends to the framework of the car, a centrally-located A-shaped apex portion extending longitudinally of the car and above the inner edges of the drop-bottom doors, lever mechanism pivotally secured to the apex portions and to the framework of the car, and means for operating such lever mechanism to move the apex portion into its fiat and A-shaped conditions, substantially as described.

11. In a car of the class described, the combination of a supporting-framework provided with upwardly-extending side and end boards, a drop-bottom formed of a plurality of swinging doors hinged at their inner edges to the framework of the car, a centrally-located A- shaped apex portion formed of two parts fold- 12. In a car of the class described, the combination of a supporting-framework provided with side and end boards, a drop-bottom portion formed of a plurality of swinging doors hinged at their inner edges to the framework of the car, a centrally-located A-shaped apex portion arranged above the drop-bottom and formed of two parts foldably secured together, lever mechanism pivotally secured to the apex portions and to pivots on the framework of the car and arranged in an X-shaped manner, a rock-shaft, chain mechanism secured to the rock-shaft and to the depending arms of the levers to operate the same and move the apex portion into its fiat and A-shaped conditions, substantially as described.

13.. In a car of the class described, the combination of a supporting-framework provided with side and end boards, a drop-bottom portion formed of a plurality of swinging doors pivotally secured to the framework of the car, a centrally-located A-shaped apex portion extending longitudinally of the car above the drop-bottom and formed of two sections foldably secured together, lever mechanism for operating such foldable apex portion andmoving it into its flat and A-shaped conditions, means for operating such lever mechanism, upwardly-extending end flanges on the ends of the apex portions, and downwardly-extending flanged members secured to the ends of the cars and adapted to be engaged by the upwardly-extending flanges on the apex to assist in positioning the same and provide a joint between the parts, substantially as described.

GEORGE E. MALTBY. Witnesses: I

THOMAS F. SHERIDAN,

HARRY I. CROMER. 

